2020 Silverado HD & Sierra HD Troubleshooting

273 topics in this forum

1. Dash Creaking

   By bigman32hockey, Friday at 10:34 PM
   • 2 replies
   • 146 views
   • 
   • mrjulian416
   • 8 hours ago

3. Dead battery...2020 L5P 1 2 3

   By Revspan, June 1, 2020
   • 32 replies
   • 5,539 views
   • 
   • Likarok
   • 12 hours ago

4. Apple Carplay

   By Kirby Roberson, Friday at 09:32 PM
   • 3 replies
   • 157 views
   • 
   • Scott Killman
   • Yesterday at 02:21 AM

5. Ready to upgrade

   By GMC4Zee, January 19
   • 5 replies
   • 463 views
   • 
   • GMC4Zee
   • Yesterday at 12:19 AM

6. Infotainment Screen Black When Using Remote Start 1 2 3 4

   By smiles, February 12, 2020   

   • infotainment
   • black
   • (and 3 more)

     Tagged with:

     • infotainment
     • black
     • screen
     • remote
     • start
   • 47 replies
   • 6,510 views
   • 
   • kylant
   • Saturday at 04:55 PM

7. Deceleration knock - 2020 Sierra Duramax

   By iflypigs, Wednesday at 05:58 PM
   • 2 replies
   • 225 views
   • 
   • paticus
   • Friday at 09:33 PM

8. Turn signals flashing back and forth. 1 2

   By Oats467, December 17, 2020
   • 15 replies
   • 993 views
   • 
   • Dave mags
   • Wednesday at 11:24 PM

9. Trailer TPMS sensors loose signal 1 2 3

   By Andrew Best, September 9, 2020   

   • Tpms problems
   • TPMS trailer
   • 35 replies
   • 2,576 views
   • 
   • Andrew Best
   • Tuesday at 01:39 PM

10. 2020 GMC AT4 - Won't start, won't even attempt to turn over 1 2

    By CO 2020 GMC AT4, February 20, 2020
    • 21 replies
    • 8,935 views
    • 
    • Keenan
    • Tuesday at 11:31 AM

11. TOWING MIRROR 2021 GMC 2500HD

    By coopermj, December 1, 2020   

    • towing mirror
    • hd surround
    • (and 1 more)

      Tagged with:

      • towing mirror
      • hd surround
      • repair
    • 7 replies
    • 857 views
    • 
    • rod120
    • January 19

12. Headlight adjustment 2020 GMC 2500hd AT4

    By Lance59, February 2, 2020   

    • headlamps
    • headlighs
    • 10 replies
    • 1,797 views
    • 
    • Dunn
    • January 17

13. TPMS sensors loose signal right front wheel 2020 3500 HD DRW

    By Andrew Best, December 28, 2020
    • 2 replies
    • 234 views
    • 
    • redwngr
    • January 17

14. Trailer TPMS sensors?

    By Hank B, January 17
    • 2 replies
    • 169 views
    • 
    • Hank B
    • January 17

15. Does Your Rear Slider Leak??

    By jeetS, January 14
    • 6 replies
    • 411 views
    • 
    • PaulGA
    • January 17

16. Can I temporarily disable hill start assist?

    By MissouriMiner, January 16
    • 4 replies
    • 361 views
    • 
    • flattop
    • January 16

17. 2020 GMC Sierra 1500 won't start

    By HubcapCharlie, November 15, 2020
    • 2 replies
    • 343 views
    • 
    • HubcapCharlie
    • January 16

18. Brakes Squeaking @ 10K 1 2 3

    By LarryM, September 16, 2020
    • 40 replies
    • 4,124 views
    • 
    • Shawn T
    • January 14

19. Leaking rear window

    By redpat2061, September 24, 2020
    • 13 replies
    • 1,277 views
    • 
    • Tomato
    • January 14

20. Cameras Not Working on 2020 2500 AT4

    By nuthin_fun, June 14, 2020
    • 3 replies
    • 1,016 views
    • 
    • Chip Fraser
    • January 14

21. Trip odometer missing 1 2

    By mojoe7, July 29, 2020
    • 19 replies
    • 2,218 views
    • 
    • Gump
    • January 12

22. 2020 2500HD Fuel Filler Door Spring

    By Mketch.918, January 9
    • 0 replies
    • 200 views
    • 
    • Mketch.918
    • January 9

23. New Purchase 3500HD AT4 or Laramie 3500 1 2

    By jp687atc, December 28, 2020
    • 25 replies
    • 1,524 views
    • 
    • rblanch
    • January 6

24. Possible Fluid leak

    By bowtie2007, January 4
    • 2 replies
    • 336 views
    • 
    • bowtie2007
    • January 5

25. key fob transmitter faulty? 1 2

    By FirstAscent, March 24, 2020
    • 18 replies
    • 3,893 views
    • 
    • Jgr2116
    • January 5

26. Def tank clunk/noise

    By dmt0707, January 4
    • 0 replies
    • 241 views
    • 
    • dmt0707
    • January 4